JPS60115309A - Elongating installation for seamless steel pipe - Google Patents
Elongating installation for seamless steel pipeInfo
- Publication number
- JPS60115309A JPS60115309A JP22254883A JP22254883A JPS60115309A JP S60115309 A JPS60115309 A JP S60115309A JP 22254883 A JP22254883 A JP 22254883A JP 22254883 A JP22254883 A JP 22254883A JP S60115309 A JPS60115309 A JP S60115309A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- tube
- cooled
- temperature
- cooling liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 238000009434 installation Methods 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000110 cooling liquid Substances 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 abstract description 23
- 239000000498 cooling water Substances 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 10
- 239000012467 final product Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/06—Rolling hollow basic material, e.g. Assel mills
- B21B19/10—Finishing, e.g. smoothing, sizing, reeling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は鋼管、主として継目なし鋼管の圧延に際し、伸
延機として使用される遊星型傾斜ロール圧延機の前後あ
るいはそのいずれか一方に、中空粗管等の温度制御を目
的とする冷却装置を配置した継目なし鋼管用伸延設備に
関する。Detailed Description of the Invention (Industrial Application Field) The present invention provides a method for rolling steel pipes, mainly seamless steel pipes, by installing a hollow roughening machine at the front and/or either side of a planetary inclined roll mill used as a stretching machine. This invention relates to stretching equipment for seamless steel pipes equipped with a cooling device for the purpose of temperature control of pipes, etc.
（従来技術）
従来、継目なし鋼管を製造する過程で、伸延機としてマ
ンドレルを具備した遊星型傾斜ロール圧延機（以下、Ｐ
、Ｓ、Ｗ、と略す。）に、供給される中空粗管の温度分
布が特異なため、軸方向の肉厚精度が劣り、製品歩留り
が悪化する等問題があった。穿孔機を出た位置での中空
粗管及びその軸方向の温度分布を第１図に示す。円柱状
素材（図示せず）が上記プラグ及びマンドレル１あるい
は穿孔機の圧延用ロール（図示せず）等に接触すること
により、また該プラグ１及び穿孔機の圧延用ロールによ
り穿孔されて中空となり大気との接触面積が増加するた
め、冷却されて上記素材から穿孔された中空粗管２０の
温度は一般に低下するのであるが、その際プラグ及びマ
ンドレル１及び穿孔機の圧延用ロール等の接触物自体の
温度が変化するため、また大気との接触時間が異なるた
め、上記中空粗管２０の温度分布は先端部Ｘから後端部
Ｙにかけては第１図に示すように先端部Ｘが低く後端部
Ｙにかけて次第に上昇するような温度分布となる。特に
後端では、マンドレル１自体等の温度がすでに高いため
また大気との接触時間が短いため、温度はあまり低下せ
ず、高い温度を維持している。従い、Ｐ、Ｓ、Ｗ、に入
る前の粗管の温度分布についても、はぼ同じ傾向の分布
状態を示す。かかる軸方向の温度分布を有することは、
圧延の際の変形抵抗値及び圧延機（Ｐ、ＳＪｌ、）自体
の変形程度に差をもたらし、そのため中間製品であるチ
ューブシェルの軸方向の肉厚及び外径寸法分布に差を生
じさせることとなる。その結果、最終製品の寸法精度に
悪影響を及ぼし、歩留り（合格品）の低下をもたらして
いた。特に、高い寸法精度が要求される高級鋼管にあっ
ては歩留りが悪かった。かかる事態は、徹底した合理化
が堆進されているメーカにとって長年問題となっていた
。(Prior art) Conventionally, in the process of manufacturing seamless steel pipes, a planetary inclined roll rolling mill (hereinafter referred to as P
, S, W. ), due to the unique temperature distribution of the supplied hollow rough tube, there were problems such as poor axial wall thickness accuracy and poor product yield. Figure 1 shows the hollow rough tube at the position where it exits the drilling machine and the temperature distribution in its axial direction. When the cylindrical material (not shown) comes into contact with the plug and the mandrel 1 or the rolling roll (not shown) of the punching machine, it is perforated by the plug 1 and the rolling roll of the punching machine and becomes hollow. Since the contact area with the atmosphere increases, the temperature of the hollow tube 20 that has been cooled and perforated from the above-mentioned material generally decreases. Because the temperature of the tube itself changes and the time of contact with the atmosphere differs, the temperature distribution of the hollow rough tube 20 is as shown in FIG. The temperature distribution becomes such that it gradually increases toward the end Y. Particularly at the rear end, since the temperature of the mandrel 1 itself is already high and the contact time with the atmosphere is short, the temperature does not decrease much and maintains a high temperature. Therefore, the temperature distribution of the rough tube before entering P, S, and W also shows a distribution state with almost the same tendency. Having such an axial temperature distribution means that
This causes a difference in the deformation resistance value during rolling and the degree of deformation of the rolling mill (P, SJl,) itself, and therefore causes a difference in the axial wall thickness and outer diameter size distribution of the tube shell, which is an intermediate product. Become. As a result, the dimensional accuracy of the final product was adversely affected, leading to a decrease in yield (passing products). In particular, yields were poor for high-grade steel pipes that required high dimensional accuracy. This situation has been a problem for many years for manufacturers who are pursuing thorough rationalization.
（発明の目的・構成）
本発明は上記現況に鑑みなされたもので、穿孔された中
空粗管の温度分布に合わせて冷却液の流量、冷却位置と
冷却帯数（冷却位置数）を任意に制御できる機能を有す
る冷却装置を提供することにより、該冷却装置をＰ、Ｓ
、Ｗ、の前後あるいはそのいずれか一方に装置し、かつ
制御装置に連結して、伸延前の中空粗管あるいは伸延後
のチューブシェルの軸方向の温度分布を所望の分布状態
にし、上記問題を解決せんとするものである。(Objective/Structure of the Invention) The present invention was made in view of the above-mentioned current situation, and allows the flow rate of the cooling liquid, the cooling position, and the number of cooling zones (number of cooling positions) to be arbitrarily adjusted according to the temperature distribution of the perforated hollow rough tube. By providing a cooling device with controllable functions, the cooling device can be
, W, and/or one of them, and are connected to a control device to make the temperature distribution in the axial direction of the hollow rough tube before elongation or the tube shell after elongation to a desired distribution state, thereby solving the above problem. This is what we are trying to solve.
以下、本発明の対象である上記冷却装置について、本発
明の実施例を示す第２図〜第６図を参照しながら具体的
に説明する。Hereinafter, the above-mentioned cooling device, which is an object of the present invention, will be specifically explained with reference to FIGS. 2 to 6, which show embodiments of the present invention.
第２図は本発明にかかる冷却装置の冷却ユニットの側面
を示す断面図、第３図は同冷却ユニットの他の実施例の
側面を示す断面図、第４図は本冷却装置の本体の側面を
示す断面図、第５図は同平面図、第６図は本冷却装置を
配置した伸延機の全体構成図である。第２図に示すよう
に、本装置の要部を構成する冷却ユニット２は、大別し
て冷却チューブ４と水室６により構成されている。そし
て、冷却チューブ４は、中空粗管が内孔３ａに挿入し易
いよう人口３ｂが拡開状に形成されたチューブ４ａに、
その後部円周に帯状に冷却液（実施例では水を用いてい
る。以下冷却水という。）を噴射する噴射ノズル３が形
成されてなる。水室６は、前記冷却チューブ４の後部外
周に、該冷却チューブ４の外壁とあいまって冷却水を一
時蓄える空間６ａを形成し、その外殻６ｂの一部に給水
管（第６図参照）と該水室６を接続するための接続口５
を形成してなる。また、かかる冷却ユニット２は、第３
図に示すようにチューブ４ａ長手方向に沿ってノズル３
をそのチューブ円周に複数の帯状に形成してなる冷却チ
ューブ４と、その外壁の外側に後端部に通水ロアを有す
るアウターチューブ８を固着して通水路８ａを形成し、
かかるアうターチューブ８の後部に、該アウターチュー
ブ８の外壁とあいまって空間６ａを形成し、その外殻６
ｂの一部に給水管（第６図参照）と該水室６を接続する
だめの接続口５を形成してなる水室６とにより構成され
てもよい。かかる場合、複数のノズル３は圧延される鋼
管の種類あるいは温度分布特性に合わせて、各ノズル径
が異なるよう（例えば、通水口から遠ざかるに従ってノ
ズル径を大きくする等）形成されてもよく、また全ての
ノズル径が同一となるよう形成されてもよい。一般に第
３図に示される冷却ユニットは、第２図に示される冷却
ユニットに比べ大容量の冷却水を必要とする圧延の際に
使用され、即ち圧延の際その鋼管の製造に合致する冷却
ユニットよりなる冷却装置と取替られる。本実施例では
上記冷却ユニット２は、第４図、第５図に示すように材
料進行方向に直角の方向に可動する可動台９上のトラフ
１０に装着されている。上記一台の１−ラフ９に何台の
冷却ユニット２を装着するかは、圧延される粗管の径の
太さ、圧延速度、材料温度、冷却水温度等の冷却条件に
より決定される。尚、本実施例では、冷却を必要としな
い圧延のためあるいは１−ラブルに際してのバンクアッ
プのため、上記冷却ユニット２が装着されたトラフ１０
に隣接して冷却ユニット２を装着しないトラフ１１が同
一の可動台９に装着され、瞬時にトラフ１０とトラフ１
１の切り換えができるようになっている。FIG. 2 is a cross-sectional view showing the side surface of the cooling unit of the cooling device according to the present invention, FIG. 3 is a cross-sectional view showing the side surface of another embodiment of the same cooling unit, and FIG. 4 is a side view of the main body of the cooling device. FIG. 5 is a plan view of the same, and FIG. 6 is an overall configuration diagram of a stretching machine in which the present cooling device is arranged. As shown in FIG. 2, the cooling unit 2 constituting the main part of this apparatus is roughly divided into a cooling tube 4 and a water chamber 6. The cooling tube 4 has a tube 4a in which the hollow tube 3b is formed in an expanded shape so that the hollow rough tube can be easily inserted into the inner hole 3a.
An injection nozzle 3 for injecting a cooling liquid (water is used in the embodiment, hereinafter referred to as cooling water) in a belt shape is formed around the rear circumference. The water chamber 6 forms a space 6a on the rear outer periphery of the cooling tube 4, which together with the outer wall of the cooling tube 4 temporarily stores cooling water, and a water supply pipe (see FIG. 6) in a part of the outer shell 6b. A connection port 5 for connecting the water chamber 6 to the water chamber 6
It forms. Further, the cooling unit 2 has a third
As shown in the figure, the nozzle 3 is inserted along the longitudinal direction of the tube 4a.
A cooling tube 4 is formed in a plurality of strips around the circumference of the tube, and an outer tube 8 having a lower water passage at the rear end is fixed to the outside of the outer wall of the cooling tube 4 to form a water passage 8a.
A space 6a is formed at the rear of the outer tube 8 together with the outer wall of the outer tube 8, and the outer shell 6
The water chamber 6 may be formed by forming a water supply pipe (see FIG. 6) and a connection port 5 for connecting the water chamber 6 in a part of the water chamber b. In such a case, the plurality of nozzles 3 may be formed to have different nozzle diameters (for example, the nozzle diameter increases as the distance from the water inlet increases) depending on the type or temperature distribution characteristics of the steel pipe to be rolled. All nozzles may be formed to have the same diameter. Generally, the cooling unit shown in FIG. 3 is used during rolling which requires a larger capacity of cooling water than the cooling unit shown in FIG. Replaced with a cooling system consisting of: In this embodiment, the cooling unit 2 is mounted on a trough 10 on a movable table 9 that is movable in a direction perpendicular to the material advancing direction, as shown in FIGS. 4 and 5. How many cooling units 2 are attached to one 1-rough 9 is determined by cooling conditions such as the diameter of the rough tube to be rolled, rolling speed, material temperature, and cooling water temperature. In this embodiment, the trough 10 to which the cooling unit 2 is installed is used for rolling that does not require cooling or for bank-up in the event of a 1-rubble.
A trough 11 adjacent to which no cooling unit 2 is attached is attached to the same movable base 9, and the trough 10 and the trough 1 are instantly connected to each other.
1 can be switched.
そして第６図に示すように、上記冷却ユニット２は該冷
却ユニット２の接続口５でフレキシブルなホース１２等
を介して給水管１３と接続され、上記給水経路途中には
各冷却ユニット２の流量を制御するコントロールバルブ
１４、Ｐ、Ｓ、Ｗ、１７の後の冷却装置Ｃの供給を制御
するコントロールバルブ１５、全体の冷却水の供給を制
御するメインコントロールバルブ１６が散設され、また
本冷却装置の前、後端部に中空粗管の温度を検出する温
度検出器１９が付設され、さらに上記冷却水の排水のた
めの排水管１８が上記各冷却ユニット２に接続されて、
本冷却装置Ｃは構成されている。As shown in FIG. 6, the cooling unit 2 is connected to a water supply pipe 13 through a flexible hose 12 or the like at the connection port 5 of the cooling unit 2. A control valve 14 that controls the cooling water supply, a control valve 15 that controls the supply of the cooling device C after P, S, W, and 17, and a main control valve 16 that controls the overall cooling water supply are installed. Temperature detectors 19 for detecting the temperature of the hollow tubes are attached to the front and rear ends of the device, and drain pipes 18 for draining the cooling water are connected to each of the cooling units 2,
This cooling device C is configured.
しかして、上記構成よりなる本冷却装置Ｃは実際の圧延
工程に装置される場合には、上記温度検出器１９及びコ
ントロールバルブ１４．１５．１６ば制御装置、例えば
圧延工程全体を制御する中央コンピュータ等に接続する
ことにより、コントロールバルブ１５．１６に関しては
Ｐ、Ｓ、Ｗ、の始動の際の入力あるいは選択にもとづい
て作動するよう、コントロールバルブ１４に関しては該
温度検出器１９で検出した値を中央コンピュータに入力
し、その値に基づいて制御量を予め記憶させである演算
式により算出し、その制御量に基づいてコントロールバ
ルブ１４を制御するよう、制御装置と連結される。Therefore, when the present cooling device C having the above configuration is installed in an actual rolling process, the temperature detector 19 and the control valves 14, 15, 16 are used as a control device, for example, a central computer that controls the entire rolling process. etc., so that the control valves 15, 16 are operated based on the input or selection at the time of starting P, S, W, and the control valve 14 is operated based on the value detected by the temperature sensor 19. The control amount is input to a central computer, and based on the value, a control amount is stored in advance and calculated using a certain arithmetic expression, and the control valve 14 is controlled based on the control amount, and is connected to a control device.
そして、本冷却装置は圧延工程において上記制御装置と
連結されることにより以下の如く作用する。The present cooling device operates in the following manner by being connected to the above-mentioned control device during the rolling process.
即ち、冷却に先立ちメインコントロールバルブ１６が、
またＰ、Ｓ、Ｗ、１７の後の冷却装置による冷却が必要
な場合には同時にコントロールバルブ１５が開かれる。That is, prior to cooling, the main control valve 16
Further, if cooling by the cooling device after P, S, W, 17 is required, the control valve 15 is opened at the same time.
そして、上記冷却装置に挿入される際、その前端に付設
されている温度検出器１９により中空粗管等の被冷却物
の温度は瞬時に検出され制御装置に入力されると、該制
御装置は（ｐ、ｓ、ｗ、１７前の冷却においては上記ｐ
、ｓ、獣用マンドレル等との接触等による温度降下や、
Ｐ。When inserted into the cooling device, the temperature of the object to be cooled, such as a hollow tube, is instantaneously detected by the temperature detector 19 attached to the front end and inputted to the control device. (p, s, w, in the cooling before 17 the above p
, s, temperature drop due to contact with animal mandrels, etc.
P.
ｓ、Ｗ、１７後の冷却においては変形加工熱による、温
度上昇を考慮した）軸方向の各部分の適性温度と比較演
算して、必要な冷却水の量（冷却帯数及び水量）と冷却
位置及び噴射時期を決定して、コントロールバルブ１４
に指令すると、上記指令に基づいてコントロールバルブ
１４が開いて冷却が行われる。例えば、温度分布が第１
図のようなものを均一な温度分布に是正する場合につい
て特定のノズルに注目して説明すれば、中空粗管の温度
の最も低い先端部Ｘがノズル部分を通過するとコントロ
ールバルブ１４は閉じられた状態で冷却水は噴射されず
、徐々に後端部Ｙ側に通過位置が移動するに従って冷却
水の流量が増すようコントロールバルブ１４がしだいに
大きく開かれ、冷却水の噴射量が増加する、即ち被冷却
物の温度分布の形状に従ってコントロールバルブ１４の
開度は調整されるため噴射量は変化する。従って、被冷
却物の後端部ではコントロールバルブ１４の開度は最も
大きくなり、極端に噴射量は増加することとなる。そし
て、上記冷却装置から出てくる被冷却物は、軸方向に沿
ってその所定冷却温度に対応した適量の、かつまた氷室
による安定した一定圧力の冷却水を噴射されているため
、軸方向の温度分布をほぼ均一に是正することができる
。For cooling after s, W, 17, calculate the required amount of cooling water (number of cooling zones and amount of water) and cooling by comparing with the appropriate temperature of each part in the axial direction (taking into account the temperature rise due to deformation processing heat) After determining the position and injection timing, the control valve 14
When a command is issued, the control valve 14 opens based on the command and cooling is performed. For example, the temperature distribution
If we focus on a specific nozzle and explain the case of correcting the temperature distribution to be uniform as shown in the figure, the control valve 14 is closed when the tip X of the hollow rough tube, which has the lowest temperature, passes through the nozzle part. In this state, the cooling water is not injected, and as the passing position gradually moves toward the rear end Y side, the control valve 14 is gradually opened wide so that the flow rate of the cooling water increases, and the amount of cooling water injected increases. Since the opening degree of the control valve 14 is adjusted according to the shape of the temperature distribution of the object to be cooled, the injection amount changes. Therefore, the opening degree of the control valve 14 becomes the largest at the rear end of the object to be cooled, and the injection amount increases extremely. The object to be cooled coming out of the cooling device is injected along the axial direction with an appropriate amount of cooling water corresponding to its predetermined cooling temperature, and also at a stable constant pressure from the ice chamber. Temperature distribution can be corrected to be almost uniform.
上記では、説明の便宜上第１図のような温度分布を有す
る中空粗管等の被冷却物の温度分布を均一に是正する場
合の本冷却装置の作用について説明したが、実際のＰ、
Ｓ、Ｗ、１７の前の冷却においてはＰ、Ｓ、Ｗ、１７内
での温度降下を考慮して、圧延（伸延）加工が一定温度
で行われるような、Ｐ、Ｓ、Ｗ、１７の後の冷却におい
てはｐ、ｓ、誓、１７に続０
くサイジングミルＳ等の整形加工が一定温度で行われる
ような、軸方向の温度分布となるよう冷却されることと
なる。しかし、かかる場合の冷却も基本的には上述の場
合と同様である。In the above, for convenience of explanation, we have explained the operation of this cooling device when uniformly correcting the temperature distribution of a cooled object such as a hollow tube having a temperature distribution as shown in Fig. 1.
In cooling before S, W, 17, the temperature drop in P, S, W, 17 is taken into account, and the rolling (stretching) process is performed at a constant temperature. In the subsequent cooling, the temperature distribution in the axial direction is such that the shaping process using the sizing mill S etc. is performed at a constant temperature following p, s, o, 17. However, cooling in such a case is basically the same as in the above case.
以上説明したように、本冷却装置は冷却水の流量を自由
に調節できる冷却ユニットを必要に応じ単数あるいは複
数組み合ねて構成されているため、冷却水の流量、冷却
位置及び冷却帯数（冷却位置）を任意に制御でき、従っ
て中空粗管の軸方向の温度分布を所望のものにできる。As explained above, this cooling system is constructed by combining one or more cooling units that can freely adjust the flow rate of cooling water, as required. The temperature distribution in the axial direction of the hollow tube can be controlled as desired.
そのため、圧延の際の温度を一定に維持することができ
、圧延の変形抵抗及びＰ、Ｓ、Ｗ、自体等の変形を一定
に保つことができるため、中間製品あるいは最終製品の
肉厚、外径寸法等の精度及び、歩留りの向上が達成可能
となった。従来、特に悪かった高級鋼管の歩留りが、大
幅に向上し製造が容易になった。さらに、Ｐ、Ｓ、Ｗ、
に続くサイジングミル等の圧延加工も常に一定の温度で
行われるため、できあがる鋼管の材料組織も一定となり
、品質の安定に大きく寄与する。Therefore, the temperature during rolling can be kept constant, and the deformation resistance during rolling and the deformation of P, S, W, themselves, etc. can be kept constant. It has become possible to improve the precision of diameter dimensions, etc., and the yield. The yield of high-grade steel pipes, which had been particularly poor in the past, has improved significantly and manufacturing has become easier. Furthermore, P, S, W,
The subsequent rolling process using a sizing mill, etc. is always performed at a constant temperature, so the material structure of the finished steel pipe is also constant, which greatly contributes to stable quality.
１
上述のとおり、本発明は製品精度の向上並びに圧延工程
の合理化に寄与する優れた発明である。1 As mentioned above, the present invention is an excellent invention that contributes to improving product precision and streamlining the rolling process.
第１図は穿孔機を出た中空粗管及びその軸方向の温度分
布を示す図面、第２図は本発明にかかる冷却装置の冷却
ユニットの側面を示す断面図、第３図は本発明にかかる
冷却装置の他の冷却ユニットの側面を示す断面図、第４
図は本発明にかかる冷却装置本体の側面を示す断面図、
第５図は本発明にかかる冷却装置本体の平面図、第６図
は本発明の全体の構成を示す構成図である。
Ｃ・・・冷却装置、Ｓ・・・サイジングミル、１・・・
マンドレル、２・・・冷却ユニット、３・・・ノスル、
４・・・冷却チューブ、５・・・接続口、６・・・水室
、７・・・通水口、８・・・アウターチューブ、９・・
・可動台、１０・・・トラフ、１１・・・トラフ、１２
・・・ホース、１３・・・給水管、１４・・・コントロ
ールバルブ、１５・・・コントロールバルブ、１６・・
・メインコントロールバルブ、２
１７・・・遊星型傾斜ロール圧延機（Ｐ、Ｓ、Ｗ、）
、１Ｂ・・・排水管、１９・・・素材、２０・・・中空
粗管。
３
蕗１図
舘２図Fig. 1 is a drawing showing the hollow rough tube that has exited the drilling machine and the temperature distribution in its axial direction, Fig. 2 is a sectional view showing the side surface of the cooling unit of the cooling device according to the present invention, and Fig. 3 is a drawing showing the temperature distribution in the axial direction of the hollow tube after exiting the drilling machine. A fourth sectional view showing a side surface of another cooling unit of such a cooling device.
The figure is a sectional view showing the side surface of the cooling device main body according to the present invention,
FIG. 5 is a plan view of the main body of the cooling device according to the present invention, and FIG. 6 is a configuration diagram showing the overall configuration of the present invention. C...Cooling device, S...Sizing mill, 1...
Mandrel, 2... Cooling unit, 3... Nostle,
4...Cooling tube, 5...Connection port, 6...Water chamber, 7...Water port, 8...Outer tube, 9...
・Movable platform, 10...Trough, 11...Trough, 12
... Hose, 13 ... Water supply pipe, 14 ... Control valve, 15 ... Control valve, 16 ...
・Main control valve, 2 17... Planetary inclined roll rolling machine (P, S, W,)
, 1B...Drain pipe, 19...Material, 20...Hollow rough pipe. 3 Fushimi 1 figure Tate 2 figure
Claims (1)
中空粗管等の被冷却物が内孔を通過するよう形成された
チューブに、その内を通過する上記被冷却物に冷却液を
噴射するための噴射ノズルを形成してなる冷却チューブ
と、上記噴射ノズルの後部に冷却液を一時蓄える空間を
形成して該噴射ノズルに冷却液を供給するよう構成され
ている氷室とによりなる冷却ユニットを、少なくとも一
つ以上上記被冷却物の通過線上に配し、上記それぞれの
各冷却ユニットを流量が調節可能なコントロールバルブ
を介して給水管に接続して任意の流量の冷却液を、任意
の冷却ユニットより、かつ任意の冷却帯数で噴射できる
よう構成される冷却装置を伸延機の前後あるいはそのい
ずれか一方に配置したことを特徴とする継目なし鋼管用
伸延設備。In rolling equipment used in the seamless steel pipe drawing process,
A cooling tube formed by forming an injection nozzle for injecting a cooling liquid onto the object to be cooled passing through the tube in a tube formed so that the object to be cooled such as a hollow rough tube passes through an inner hole; At least one cooling unit consisting of an ice chamber configured to form a space for temporarily storing cooling liquid at the rear of the injection nozzle and supplying the cooling liquid to the injection nozzle is disposed on the passage line of the object to be cooled. Each of the above cooling units is connected to the water supply pipe via a control valve whose flow rate can be adjusted so that any flow rate of cooling liquid can be injected from any cooling unit and at any number of cooling zones. 1. A stretching equipment for seamless steel pipes, characterized in that a cooling device is placed before or after a stretching machine, or either one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22254883A JPS60115309A (en) | 1983-11-25 | 1983-11-25 | Elongating installation for seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22254883A JPS60115309A (en) | 1983-11-25 | 1983-11-25 | Elongating installation for seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60115309A true JPS60115309A (en) | 1985-06-21 |
Family
ID=16784165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22254883A Pending JPS60115309A (en) | 1983-11-25 | 1983-11-25 | Elongating installation for seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60115309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316934A (en) * | 2013-06-24 | 2013-09-25 | 中冶赛迪工程技术股份有限公司 | Multi-damping upward-spraying laminar cooling device with separable cavities |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574310A (en) * | 1980-06-11 | 1982-01-09 | Sumitomo Metal Ind Ltd | Method and apparatus for rolling metallic pipe |
| JPS5716130A (en) * | 1980-07-04 | 1982-01-27 | Nippon Steel Corp | Uniform quencher for bar steel material |
| JPS5711602B2 (en) * | 1976-10-20 | 1982-03-05 |
-
1983
- 1983-11-25 JP JP22254883A patent/JPS60115309A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711602B2 (en) * | 1976-10-20 | 1982-03-05 | ||
| JPS574310A (en) * | 1980-06-11 | 1982-01-09 | Sumitomo Metal Ind Ltd | Method and apparatus for rolling metallic pipe |
| JPS5716130A (en) * | 1980-07-04 | 1982-01-27 | Nippon Steel Corp | Uniform quencher for bar steel material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316934A (en) * | 2013-06-24 | 2013-09-25 | 中冶赛迪工程技术股份有限公司 | Multi-damping upward-spraying laminar cooling device with separable cavities |
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